Improvement in lamps



F. McDANIELS.

Lamp.

'No. 107,276. Patented Sept. 13, 1870;

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Letters Patent No. 107,276, dated September 13, 1870.

IMPROVEMENT IN LAMPS.

The Schedule referred to in these Letters Patent and making partof the same.

To all whom it may concern-.-

Be it known that I, FRANCIS LICDAXIELS, of the city and county of Philadelphia. and State of Pennsylvania, have invented a new and useful I m provcment in Lamps; and I do hereby declare that the following is a full, clear, and exact description of the construc iion and operation of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

The object of my invention consists in constructing a lamp for burning petroleum and other oils, the oilrcserroir of which is made otsuch a form, and placed in such a position, that the shadow of it will occasion little or no inconvenience, while the distance between the burning partof the wick and the surface of the oil varies as little as possible, in order that as much oil may be drawn up at last as atfirst, and thus prevent the diminution of the flame.

The peculiar construction of the lamp also enables it to be supplied with oil, with perfect safety, while the wick is burning. 1

Figure 1 is a plan view of my improvement in lamps.

Figure 2 is an edge view of same.

Figure 3 is avertical section through the center of same.

To enable others skilled in the artto make and use my invention, 1 will now proceed to describe its construction and operation.

The annular oil-vessel '1, which forms the body of the lamp, is made of any suitable metal, and is'pro vided on the lower side with knobs, B B and B into which are screwed three radial arms, A A and A The said arms are made of tubing, and their inner ends are secured to a circular center-piece, I, the upper portion of which is made in the form of 'a hollow cylinder, 0, and into which the burner and its wick are inserted.

A free communication, 0, for the passage of the oil from the vessel 1 to thcinterior ot the cylinder 0 is made through one or all of the arms.

The lamp can be used as a hanging lamp, or it can be elevated on a suitable stand, by means of an opening, N, made in the lower part of the center-piece P, and provided with a female screw-thread, into which is screwed the upper end of the stand.'

The oil-vessel 'l is provided on its upper surface with a supply-opening, O, which is opened and closed by means of a screw-cap, D.

The vessel 1 is made in the form of a tube, in order that the area of its cross-section may be as small as possible,and the shadow of it be imperceptible, and,

at the same time, the large quantityof oil in it will occupy a very insignificant height.

The shade rests upon the radial arms, asshowu'in fig.'3, and surrounds the chimney, so that the light, passing, upward, is collected by it, and, from every point of its inner surface, is reflected-directly downward and through the open space between the inner side's of the oil-vessel, thus thoroughly illuminating the surface beneath it. The arms A A and A, in this case, are also made as small as possible, in order that the shadow produced by them will be small and unimportant.

The lower part of the burner (in the cylinder-C) is constantly immersed in the oil, and, owing tothe small height that it (the oil) occupies, the-distance between it and the burning part of the wick will be as unchangeable as possible, in order that the wick may receive a regular supply or" oil, and thus produce a bright and steady light.

The opening 0', by which the lamp is supplied, is so far removed from the flame that it (the lamp) can befilled at any time with perfect safety.

I am aware that there have been lamps arranged somewhat similar to this, that is, with an annular oilvesscl, and with tubes radiating toward the central-- portion of the lamp, for supplying oil to the wick. I,

therefore, do not wish to broadly claim the use of these parts; but

What I do claim, and desire to secure by Letters Patent, isp The combination of the annular oil-vessel 'l, knobs B B and B tubes A A and A center-piece P, cyl'- I Witnesses: v

FRANK STOUT, Geo. E. Nrouons. 

